C# (CSharp) Microsoft.AspNetCore.Mvc.Analyzers CodeAnalysisExtensions.HasAttribute Examples

Example #1

        public void HasAttribute_ReturnsTrueForAttributesOnOverridenProperties()
        {
            // Arrange
            var source = @"
using System;
namespace TestApp
{
    public class TestAttribute : Attribute { }

    public class TestControllerBase
    {
        [TestAttribute]
        public virtual string SomeProperty { get; set; }
    }

    public class TestController : TestControllerBase
    {
        public override string SomeProperty { get; set; }
    }
}";

            var compilation = TestCompilation.Create(source);
            var attribute   = compilation.GetTypeByMetadataName("TestApp.TestAttribute");
            var testClass   = compilation.GetTypeByMetadataName("TestApp.TestController");
            var property    = (IPropertySymbol)testClass.GetMembers("SomeProperty").First();

            // Act
            var hasAttributeWithoutInherit = CodeAnalysisExtensions.HasAttribute(property, attribute, inherit: false);
            var hasAttributeWithInherit    = CodeAnalysisExtensions.HasAttribute(property, attribute, inherit: true);

            // Assert
            Assert.False(hasAttributeWithoutInherit);
            Assert.True(hasAttributeWithInherit);
        }

Example #2

        public void HasAttribute_ReturnsTrueForAttributesOnMethods()
        {
            // Arrange
            var source = @"
using System;
namespace TestApp
{
    public class TestAttribute : Attribute { }

    public class TestController
    {
        [TestAttribute]
        public void SomeMethod() { }
    }
}";

            var compilation = TestCompilation.Create(source);
            var attribute   = compilation.GetTypeByMetadataName("TestApp.TestAttribute");
            var testClass   = compilation.GetTypeByMetadataName("TestApp.TestController");
            var method      = (IMethodSymbol)testClass.GetMembers("SomeMethod").First();

            // Act
            var hasAttribute = CodeAnalysisExtensions.HasAttribute(method, attribute, inherit: false);

            // Assert
            Assert.True(hasAttribute);
        }

Example #3

        public void HasAttribute_ReturnsTrueForInterfaceContractOnAttribute()
        {
            // Arrange
            var source = @"
using System;
namespace TestApp
{
    public interface ITestInterface { }

    public class TestAttribute : Attribute, ITestInterface  { }

    [TestAttribute]
    public class TestController
    {
    }
}";

            var compilation = TestCompilation.Create(source);
            var @interface  = compilation.GetTypeByMetadataName("TestApp.ITestInterface");
            var testClass   = compilation.GetTypeByMetadataName("TestApp.TestController");

            // Act
            var hasAttribute          = CodeAnalysisExtensions.HasAttribute(testClass, @interface, inherit: true);
            var hasAttributeOnDerived = CodeAnalysisExtensions.HasAttribute(testClass, @interface, inherit: true);

            // Assert
            Assert.True(hasAttribute);
            Assert.True(hasAttributeOnDerived);
        }

Example #4

        public void HasAttribute_ReturnsTrueIfBaseTypeHasAttribute()
        {
            // Arrange
            var source = @"
using Microsoft.AspNetCore.Mvc;
namespace TestApp
{
    [Controller]
    public class TestControllerBase { }

    public class TestController : TestControllerBase { }
}";

            var compilation = TestCompilation.Create(source);

            var attribute = compilation.GetTypeByMetadataName("Microsoft.AspNetCore.Mvc.ControllerAttribute");
            var testClass = compilation.GetTypeByMetadataName($"TestApp.TestController");

            // Act
            var hasAttributeWithoutInherit = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: false);
            var hasAttributeWithInherit    = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: true);

            // Assert
            Assert.False(hasAttributeWithoutInherit);
            Assert.True(hasAttributeWithInherit);
        }

Example #5

File: CodeAnalysisExtensionsTest.cs Project: wserr/AspNetCore

        public async Task HasAttribute_ReturnsTrueIfTypeHasAttribute()
        {
            // Arrange
            var compilation = await GetCompilation();

            var attribute = compilation.GetTypeByMetadataName("Microsoft.AspNetCore.Mvc.ControllerAttribute");
            var testClass = compilation.GetTypeByMetadataName($"{Namespace}.{nameof(HasAttribute_ReturnsTrueIfTypeHasAttribute)}");

            // Act
            var hasAttribute = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: false);

            // Assert
            Assert.True(hasAttribute);
        }

Example #6

File: CodeAnalysisExtensionsTest.cs Project: wserr/AspNetCore

        public async Task HasAttribute_ReturnsTrueForAttributesOnProperties()
        {
            // Arrange
            var compilation = await GetCompilation();

            var attribute = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsTrueForAttributesOnPropertiesAttribute");
            var testClass = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsTrueForAttributesOnProperties");
            var property  = (IPropertySymbol)testClass.GetMembers("SomeProperty").First();

            // Act
            var hasAttribute = CodeAnalysisExtensions.HasAttribute(property, attribute, inherit: false);

            // Assert
            Assert.True(hasAttribute);
        }

Example #7

File: CodeAnalysisExtensionsTest.cs Project: wserr/AspNetCore

        public async Task HasAttribute_ReturnsTrueForAttributesOnMethods()
        {
            // Arrange
            var compilation = await GetCompilation();

            var attribute = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsTrueForAttributesOnMethodsAttribute");
            var testClass = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsTrueForAttributesOnMethodsTest");
            var method    = (IMethodSymbol)testClass.GetMembers("SomeMethod").First();

            // Act
            var hasAttribute = CodeAnalysisExtensions.HasAttribute(method, attribute, inherit: false);

            // Assert
            Assert.True(hasAttribute);
        }

Example #8

File: CodeAnalysisExtensionsTest.cs Project: wserr/AspNetCore

        public async Task HasAttribute_ReturnsTrueForInterfaceContractOnAttribute()
        {
            // Arrange
            var compilation = await GetCompilation();

            var @interface   = compilation.GetTypeByMetadataName($"{Namespace}.IHasAttribute_ReturnsTrueForInterfaceContractOnAttribute");
            var testClass    = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsTrueForInterfaceContractOnAttributeTest");
            var derivedClass = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsTrueForInterfaceContractOnAttributeDerived");

            // Act
            var hasAttribute          = CodeAnalysisExtensions.HasAttribute(testClass, @interface, inherit: true);
            var hasAttributeOnDerived = CodeAnalysisExtensions.HasAttribute(testClass, @interface, inherit: true);

            // Assert
            Assert.True(hasAttribute);
            Assert.True(hasAttributeOnDerived);
        }

Example #9

File: CodeAnalysisExtensionsTest.cs Project: wserr/AspNetCore

        public async Task HasAttribute_ReturnsFalseIfSymbolDoesNotHaveAttribute()
        {
            // Arrange
            var compilation = await GetCompilation();

            var attribute    = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttribute");
            var testClass    = compilation.GetTypeByMetadataName($"{Namespace}.HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttributeTest");
            var testMethod   = (IMethodSymbol)testClass.GetMembers("SomeMethod").First();
            var testProperty = (IPropertySymbol)testClass.GetMembers("SomeProperty").First();

            // Act
            var classHasAttribute    = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: false);
            var methodHasAttribute   = CodeAnalysisExtensions.HasAttribute(testMethod, attribute, inherit: false);
            var propertyHasAttribute = CodeAnalysisExtensions.HasAttribute(testProperty, attribute, inherit: false);

            // AssertControllerAttribute
            Assert.False(classHasAttribute);
            Assert.False(methodHasAttribute);
            Assert.False(propertyHasAttribute);
        }

Example #10

        public void HasAttribute_ReturnsFalseIfSymbolDoesNotHaveAttribute()
        {
            // Arrange
            var source = @"
using Microsoft.AspNetCore.Mvc;
namespace TestApp
{
    public class HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttribute : Attribute { }

    [Controller]
    public class HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttributeTest
    {
        [NonAction]
        public void SomeMethod() { }

        [BindProperty]
        public string SomeProperty { get; set; }
    }
}";

            var compilation  = TestCompilation.Create(source);
            var attribute    = compilation.GetTypeByMetadataName("TestApp.HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttribute");
            var testClass    = compilation.GetTypeByMetadataName("TestApp.HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttributeTest");
            var testMethod   = (IMethodSymbol)testClass.GetMembers("SomeMethod").First();
            var testProperty = (IPropertySymbol)testClass.GetMembers("SomeProperty").First();

            // Act
            var classHasAttribute    = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: false);
            var methodHasAttribute   = CodeAnalysisExtensions.HasAttribute(testMethod, attribute, inherit: false);
            var propertyHasAttribute = CodeAnalysisExtensions.HasAttribute(testProperty, attribute, inherit: false);

            // AssertControllerAttribute
            Assert.False(classHasAttribute);
            Assert.False(methodHasAttribute);
            Assert.False(propertyHasAttribute);
        }